World Resorts USA Oshkosh Weather

Oshkosh Sea Temperature in September

Average sea water temperature in September:
+69.2°F
Minimum sea water temperature in September: 75.7°F
Maximum sea water temperature in September: 61.9°F

Daily sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 67.8°F. The highest and lowest sea temperatures during the month were 70.5°F and 62.2°F.

Monthly sea water temperature in Oshkosh, °F

Which USA resorts have warmest sea in September?

Place name September 2025 September 2024
Key West 86.9°F 87.4°F
Islamorada 86.7°F 87.3°F
Key Largo 86.6°F 87.1°F
Fort Lauderdale 86.4°F 86.4°F
West Palm Beach 86.2°F 86.4°F
Everglades 86.2°F 87.0°F
Miami Beach 86.1°F 86.3°F
Naples 86.1°F 87.2°F
Marco Island 86.0°F 87.2°F
South Padre Island 86.0°F 85.8°F
Corpus Christi 85.8°F 84.7°F
Miami 85.8°F 86.0°F
Sanibel Island 85.7°F 87.0°F
Galveston Island 85.5°F 84.4°F
Galveston 85.5°F 83.7°F
Cape Coral 85.2°F 86.5°F
Houston 84.9°F 83.4°F
Siesta Key 84.9°F 86.8°F
Sarasota 84.8°F 86.7°F
Cocoa Beach 84.6°F 85.2°F

Best time for vacation in Oshkosh

Sunniest months:
August 14 days
September 13 days
October 13 days
Warmest months:
July 77.0 °F
August 76.0 °F
June 72.7 °F
Warmest sea temp:
July 75.7 °F
August 74.9 °F
June 70.0 °F
Coldest months:
January 24.2 °F
February 25.3 °F
December 31.2 °F
Rainiest months:
June 3 days
July 3 days
May 2 days
Windiest months:
November 12.9 mph
April 12.1 mph
October 11.6 mph

Oshkosh on a weather map

Oshkosh
+41°F
E 12 mph
Feels like: +34°F
Precip.: 0%
Places in USA:
Name
°F
+45°F
+75°F
+75°F
+54°F
+57°F
+81°F
+81°F
+68°F
+39°F
+59°F
+55°F
+79°F
+75°F
+77°F
+48°F
24 Hours Forecast
Oshkosh
Local time: 11:37
December 23, tuesday
1200
41°F
E
12 mph
1500
41°F
E
14 mph
1800
32°F
E
9 mph
2100
30°F
SE
7 mph
December 24, wednesday
0000
27°F
SE
6 mph
0300
27°F
SW
6 mph
0600
27°F
W
4 mph
0900
27°F
W
6 mph
Units of measurement: °C / °F